RFR: 8373105: Test tools/jpackage/share/AsyncTest.java failed: problem running hdiutil

[Alexey Semenyuk]

On Thu, 18 Dec 2025 23:05:35 GMT, Alexander Matveev <almatvee at openjdk.org> wrote:

> - I was not able to reproduce this issue.
> - Based on log we calling same detach command simultaneously:
> 
> [08:49:10.288] TRACE: exec: Execute [/usr/bin/hdiutil detach -force -verbose /Volumes/Foo](5); discard out+err...
> [08:49:10.274] TRACE: exec: Execute [/usr/bin/hdiutil detach -force -verbose /Volumes/Foo](5); discard out+err...
> 
> - I think `hdiutil` does not handle attaching/detaching DMG with same name asynchronously multiple times well enough.
> - Fixed by mounting DMG into random location.
> - Added `-nobrowse`, so DMG will not be added to Finder. We do not need DMG to be shown in Finder when attached during test.

I once suspected jpackage's DMG attach/detach code was not very reliable, as the fixed volume name is used and filed [JDK-8371494](https://bugs.openjdk.org/browse/JDK-8371494) to investigate. Back then, as I never observed AsyncTest failures, I closed the CR as not an issue. It merely took some time to reveal the problem.

We need both jpackage and the test code fixed.

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PR Comment: https://git.openjdk.org/jdk/pull/28912#issuecomment-3672780072